21322331221303 has 8 divisors (see below), whose sum is σ = 24828159266208. Its totient is φ = 17931448358304.

The previous prime is 21322331221283. The next prime is 21322331221333. The reversal of 21322331221303 is 30312213322312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21322331221303 is a prime.

It is a super-2 number, since 2×21322331221303² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21322331221333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28736295076 + ... + 28736295817.

It is an arithmetic number, because the mean of its divisors is an integer number (3103519908276).

Almost surely, 2^{21322331221303} is an apocalyptic number.

21322331221303 is a deficient number, since it is larger than the sum of its proper divisors (3505828044905).

21322331221303 is an equidigital number, since it uses as much as digits as its factorization.

21322331221303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57472590953.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 21322331221303 its reverse (30312213322312), we get a palindrome (51634544543615).

The spelling of 21322331221303 in words is "twenty-one trillion, three hundred twenty-two billion, three hundred thirty-one million, two hundred twenty-one thousand, three hundred three".